Explosive-engine.



J. F. MOEN.

EXPLOSIVE ENGINE. APPLICATION FILED MAR. 27, 1914.

Patented Aug. 10, 1915.

2 SHEF-ITS-SHEET 2.

. UNITE-D strarns PATENT OFFICE JOHN F. MOEN 'QOF NEW YORK, N. Y.

To all whom it may concern: Be it known that-I, JOHN Kings, and State of New York, have inventned new; and useful Improvements in Explo gine of novel construction and more particularly to novel and simple meansfor controlling the influx of the explosive mixture into each'cylinder and for effectively expelling theexploded gases therefrom. The invention also includes other novel features of ,construction as more fully pointed out in the appended specification and claims.

In the accompanying drawing; Figure 1 1s a side view of an engine embodying my invention; Fig. 2 a longitudinal sectionthrough one of the cylinders and adjoining parts; Fig. 3 a cross section on line 33, Fig. 2; Fig a similar section on line 44,

Fig. 2; Fig. 5 an outer view of one of the valves, its surface being laid out into a plane, and Fig. 6 a similar outer view laid I out in a plane, ofthe inner surface of-one of the cylinders. v

Each cylinder 10 of my improved explosive engine 11 is provided with a lower bore 12 adapted to-"snugly embracethe piston 13 and with an upper bore or recess 14 of a diameter that exceeds that of bore 12 IVithin bore. 14 is rotatably mounted an inverted cup-shaped valve 15 comprising acylinder 16 and arr-integral upper Wall or disk 17.

The inner bore 18 of valve 15 equals in diameter the bore 12 of cylinder 10 so as to 'beal'so adapted to snugly embrace piston 13.

From wall 17, there extends upwardly a stem-19 passing through a corresponding bore of a cover 20 removably secured to the top of cylinder 10 in suitable manner. Between wall 17 and cover 20 is interposed a plurality ofantifriction balls 21 guided by rings 22 and'taking up the upward thrust of valve 15 during compression, explosion and exhaust while reducing the friction of the valve during its rotation to a minimum. Upon each stem 19* isfirmlymounted a worm wheel 23 and a fly wheel 24, the wheel 23 engaging a worm 25. The worms 25 of the several stems 19 are mounted on a common shaft 26 which is provided at one end with a sprocket wheel 27. The latter is, by

chain 28, connected to a similar wheel 29 of EXPLOSIVE-ENGINE.

Specification of Letters Patent. Patented Aug, 10 1915,

Application filed March 27, 1914. Serial No. 827,718.

crank shaft 30 to which'moti'on is transmitted from each piston 13 through a pitman 31. The ratio between the parts 29, 27,

25, 23 should be such that each val've 15 makes one complete revolution while shaft 30 performs two revolutionsgthe engine being shown to be of the four cycle type. Shaft 30 carries the usual fly wheel32, while the individual fly wheels 24 of valves 15 tend to maintain a uniform non-vibratory rotation thereof so as to render the movement of said valves independent of any jerks of the chain in case the latter has become slightly slackened owing to prolonged use or inaccurate adjustment. The spokes 24 of each fly wheel 21 are set at an inclineso as to con stitute a fan that produces a down draft on f the top'of cylinder 10 and thus assists in the cooling of the engine.

Cylinder 10 is provided near its top with an inlet port 33 and a main exhaust port 34,

33 so as to be out of horizontal alinement with the latter as indicated by. the upper dot and dash line in Fig. 6. Ports 33 and 3 1 are arranged diametrically opposite each other and are each of a length to correspond approximately to one eighth of the inner port 31 (see lower dot and dash line', Fig.

j the port 34 being located higher than port 6) while the lower end of port 35 lies slightly above the top of piston 13 when the latter occupies its lowermost position (Fig. 2). In vertical direction, the right and left hand terminals of port 35 coincide .with those of port 34, port 35 thus occupying in circumferential direction also about one eighth of the inner circumference of. the upper bore of cylinder 10. Inlet port 33 communicates with the inlet manifold 36, while both of the exhaust ports 34, 35 open into a commonexhaust chamber 37 of a;

height that equals substantially the aggregate height of port 34, 35 plus the height of the web 38 formed between said ports, chamber '37 being connected to the usual exhaust manifold (not, shown) through branch 39. 'The cylinder 10 is surrounded by a cooling jacket 10 extending above and below exhaust chamber 37 so as to permit a free circulation ofthe cooling medium. a,

The, cylindrical portion 16 of valve is inclination of duct 43 being opposite to that of port 35 as clearlyiinlicated in Figs. and l). Duct 42 is located higher than duct ll so asto-be out of horizontal alinement therewith, while the upper end of duct 4-3 is located slightly lower than duct 4.1, as indicated by (lot and dash lines in Fig. 0. In circumterential direction, all of the ducts ll, 42, 43 .occupy about one eighth of the outer circumference of cylinder 16, duct l1 being spaced from the vert cally alined ducts l2, 4:3 by a solid cylinder portion oi also a-boutione. eighth ot such circumference (Fig.6)p 1" As valve receives continuous rotation in-the direction of the arrow sti t in the inanncr described, a properlytimed alternate intake of the explosive charge and exhaust of the exploded gases takes place. In the position of alve 15 shown in Figs. 2, 3, 5, and-(hthe piston 13 has just completed its power stroke and exhaust is about'to commence. of ducts 42, ltxwith ports 34, respectively, the main exhaust port 3lwill be gradually opened andclos'ed, while the lower portion of the-inclined duct $53 will first overlap the corresponding lower portion of'the op'po sitely inclined port 35, whereupon the overlapping'point of said duct and port will gradually rise to form a' movable exhaust opening until port 35 is closed at its top which closure coincides timely with the arrival of piston 13 at its topmost position.

As the period of time elapsing between thev start and finish of the gradual rising of the movable exhaust opening formed by the duct 43 and port 35; corresponds to two eighths or one quarter a complete revolution of valvelii, which time is also consumed by the exhaust stroke of piston 13 and as furthermore the lower ends of the ports 43, 3 are made to overlap prior to the arrival of the ascending piston at said overlapping point, it is obvious that theascending piston 13 will. slightly lag behind the likewise ascending movable exhaust opening, during which time the main exhaust port 34: is also open. .In this way, the exploded mixturei's most effectively expelled from the cylinder prior to the admission of the fresh charge.

As soon as the exhaust ports 3st, 35 have been closed, inlet duct ll will register with port to admit a fresh explosive charge into cylinder 10 while piston 13 descends. During the subsequent upstroke of the piston, all-\ ports are closed to permit a compressionof the charge, while at the end of the compression stroke of the piston, ignition takes place.

operation.

During the subsequent registering In order to reduce the number of ducts provided'in valve l5-tominimum, the spark plug 4-5 is fitted into the upper partof cylinder 10 at that point which happens to be uncovered bythe inlet duct 4-1 at the precise moment when ignition should. take place, the actual location of plug l5 being clearly indicated in Figs. 3 and G."

It is to be understood that the particular COTlStlHCtlOIl of the engine as shown and dc scribed, constitutes but one embodiment of my invention. and that various changes more particularly relating to the shape and position of the several valve ports may be made without departing from the spirit'oit my invention.

lt will be seen that a machine ot the general,construction described, may be easily iminut'actured. comprises but a minimum number of operative parts which are readily accessible. and is reliable and eli'ective in I claim 1.. An cx )lOSlYQ en ine com )ri'sim a cvl-.

the inlet portand an exhaust duct which is inclined in a direction opposite to that of the exhaust port of the cylinder and is adapted to register therewith, and a piston slidably engaging the valve.

2. An explosive engine comprising a cylinder having an inlet port and an inclined exhaust port. a hollow valve rotatably mounted within the cylinder and having an inlet duct and an exhaust duct which is oppositely inclined relatively to the exhaust port of the cylinder. a piston adapted to slidably engage the hollow valve, a crank shalt adapted to be actuated by the piston, and means for operatively connecting the crank shaft and valve.

3. An explosive engine comprising a cylinder having an inlet port, a main exhaust port and an inclined supplementary exhaust port. a hollow valve rotatably mounted within the cylinder and having an inlet duct. a main exhaust duct and a supplementary exhaust duct inclined oppositely to the exhaust port of the cylinder, a plstonuncovered by the inlet duct of'the valve, a

piston slidably engaging the valve, a crank shaft adapted to be actuated by the piston, and means for operatively connecting the crank shaft to the valve.

5. An explosive engine comprising a cyl' inder having an inclined exhaust port, a valve rotatably'mounted Within said cylinder and having an exhaust duct which-is inclined oppositely to the exhaust port of the cylinder, said port and duct being adapted to jointly form a movable exhaust opening, and a piston slidably engaging the valve and adapted to lag behind said m0vable opening during its exhaust stroke.

6. An explosive engine comprising a re cessed cylinder having an inlet port, a main exhaust port and an inclined supplementary exhaust port, a valve rotatably mount ed Within the cylinder-recess and having an inlet duct, a main exhaust duct and a supplementary exhaust duct inclined oppositely to the supplementary exhaustport of the cylinder, said supplementaryport and duct being adapted. to jointly-form a movable exhaust opening,'a piston slidably engaging the valve and adapted to lag behind said. movable opening during its exhaust stroke, and means for operatively connecting the piston and valve.

7. An explosive engine comprising a cyl inder having an inclined exhaust port, a valve rotatably mounted Within said cylinder and having an exhaustduct which is inclined oppositely to the. exhaust port of the cylinder,'said port and duct being adapted to jointly form a movable exhaust opening, and a piston slidably engaging the valve and adapted to lag behind the mov-f &

iii the cylinderrecess and having an inlet duct, a mainflexhaust duct and a supplementary exhaust duct inclined oppositely to the supplementary exhaust 'port of the cylinder, said supplementary port and duct being adapted tojointly form a movable exhaust opening, an exhaust chamber with which the exhaust ducts of the valve are adapted to communicate, a cooling jacket surrounding the cylinder and extending above and below the exhaust chamber, a piston" slidably engaging the valve and adapted to lag behind the movable exhaust opening during its exhaust stroke, and means for 'operatively connecting the piston and ,,valve. 4

I JOHN F. MOEN.

. Witnesses: Y

ARTHUR E. ZUMPE,

MADELINE HIRSCH. 

